Hey everyone, I'm curious to see if anyone has tried this out. Rather than buying an expensive external unit for shooting time-lapse movies on the Rebel XT, has anyone tried hooking up the 2.5mm connector port with a 2.5mm to 3.5mm audio cable and running audio signals through to see what happens? I just got a Rebel and I'm interested in doing time-lapse movies... if I can find an audio signal that can cause the Rebel to take a picture, I can make an intervolometer out of an iPod by making tracks with the signal and timed intervals of silence. Anyone know if this is possible? I'm certainly going to try it if no one else has.